Finding the Fourth Proportional to 12,434.67, 17,155.17 and 7,399.17

Step by Step Solution

1. Step 1: Write the proportion equation
   12,434.67 : 17,155.17 = 7,399.17 : x
2. Step 2: Convert to fraction form
   12,434.67/17,155.17 = 7,399.17/x
3. Step 3: Cross multiply
   12,434.67x = 17,155.17 × 7,399.17
4. Step 4: Simplify right side
   12,434.67x = 126,934,019.21
5. Step 5: Solve for x
   x = 126,934,019.21/12,434.67
6. Step 6: Final answer
   x = 10,208.07